Heat exchange device



'Nv. 20, 1934. D. w. LAKE HEAT EXCHANGE DEVICE 2 Sheets-Sheet 1 FiledJune 27, 1934 fii 0 W 7 z z z 2 F 2 m 4 10 j 5 oz k 5 x Y i v 5 5 Z w 548 7M 4/ l n W m w g .fi

Jfzz/wfor: Dorzald ZJZale,

Nov. 20, 1934. D, w A E 1,981,424

HEAT EXCHANGE DEVICE Filed June 27, 1934 2 Sheets-Sheet 2 f? we 72 for:ifioflald ZJZale,

jltbrizeg/s- Patented Nov. 20, 1934 UNITED STATES BEAT EXCHANGE DEVICEDonald W. Lake, Chicago, Ill., assignor to Excel Auto Radiator Company,Chicago, 111., a corporation of Delaware Application June 27, 1934,Serial No. 732,689

3Claims.

The invention relates to heat exchange devices and is particularlyadapted to be embodied in heaters for automobiles.

One form of the invention is embodied in a 5 heater for automobiles, theheater being of that type in which the water of the cooling system isemployed to heat the interior'of the automobile.

The heater comprises a core having a plurality of tubes between whichthe air in the automobile Q is circulated by a fan so that there will bean exchange of heat between the hot water flowing in the tubes and theair passing between them.

Heaters of the type described above are generally secured to thedashboard of the automobile,

the conduits whereby the heated liquid is supplied to the core being ledthrough apertures in the dashboard.

Various means have been employed to mount the heaters on the dashboard,the earlier types of mountings being undesirable as they employed aplurality of bolts extending throughthe dashboard. This requireddrilling a plurality of holes through the dashboard and as that surfaceof the dashboard beneath the hood of the automobile is generallyemployed as a a base upon which much of the electrical equipment of thecar is mounted, it is difficult to find clear spaces of the properdistance apart through which the holes may be drilled.

In the present embodiment of the invention, a single hole is drilledthrough the dashboard. The casting or bushing extending through thishole is cored to provide a plurality of passages through which heatingmedium is led to the radiator core. The ra'diator core and the fan foradvancing the air being heated are mounted on or carried by the castingor bushing.

Other advantages will become apparent as the following detaileddescription progresses in connection with the accompanying drawings inwhich- Fig. 1 is a vertical longitudinal section taken through a heaterembodying the invention, the section being also taken through thedashboard of an automobile;

Fig. 2 is a plan section taken on line 22 of nates generally a heaterparticularly adapted to be installed in an automobile to heat theinterior thereof. The heater 10 preferably comprises a radiator core 11which, in turn, comprises upper ,and lower headers 12 and 13,respectively, which communicate with each other through a plurality oftubes 15 of elongated cross-section.

Mounted upon the tubes 15 and extending transversely thereof are aplurality of fins or vanes 16 which facilitate the exchange of heatbetween a heating medium flowing through the tubes 15 and air whichpasses between the tubes 15.

The radiator core 10 is preferably mounted in a housing 18 which isprovided with a front wall or portion 19 having a relatively largecentral opening 20. Disposed in the opening 20 are a plurality ofadjustable shutters 21. This construction is well known to those skilledin the art.

- The heater illustrated in Figs. 1 to 3 inclusive, is particularlyadapted to be connected to the cooling system of the automobile so thathot water from the cooling system will pass into the header 12 andgravitate downwardly in the tubes 15 into the header 13 from whence itis returned to the cooling system.

The means for advancing the heated water through the radiator core 10preferably comprises pipes or tubes 24 and 25 communicating with andsecured to the headers 12 and 13, respectively, and communicating alsowith passages 26 and 27, respectively, cored in a casting or bushing 28which projects through the dashboard 29 of an automobile. It will benoted that the tubes 24 and 25 are bent so that they may be brought intoregistry with the associated ends of the passages 26 and 27. Anysuitable means may be provided for securing the tubes 24 and 25 to thecasting 28. In this instance, the ends of the tubes adjacent the casting28 are flared outwardly as at 30 to seat upon frustro-conical surfaces21 formed upon bosses 32 extending from the casting 28. Nuts 33 securedthereto upon the bosses 32 clamp the flared ends 30 against thefrustro-conical surfaces 21.

The casting -28 is provided with an integral nut or flange 35 whichabuts against the inner side or surface of the dashboard 29. The outerend of the casting 28 is screw-threaded to receive a plurality of nuts37, one of which abuts against a metallic bar 40 which abuts in turnagainst the outer surface of the dashboard 29. The function of the bar40 is to prevent tilting of the heater in a vertical plane and to assistthe flanges U-shaped bracket 42 are secured rigidly to the housing 18 byany suitable means, suchas spot welds. I

The bracket 45 extending between the legs the bracket 42 carries anelectric motor 46 provided with the usual fan 48. A metallic strap tosecures the motor 46 to the bracket'45.

Screwthreaded into the outer ends of the pase sages 26 and 27 are tubesor pipes 52 and 53, respectively, to which flexible hoses, not shown,may be secured to connect the heater to the cooling system of theautomobile.

It is readily apparent that when the heater is to be mounted in theautomobile, it is only necessary to drill a hole 55 through thedashboard 29 to receive the casting 28. If it is so desired, the bolts42 may extend through the flange or nut 35 -to engage the dashboard 29and thus prevent rotation of the casting 28 in the dashboard 29.

construction with the heater shown in Figs. 1 to 3, inclusive, and isconnected to the heating system of an automobile and supported by thedashboard of the automobile by means substantially identical'with thoseshown in Figs. 1 to 3, inclu- 40 sive. L

However, in Figs. 4 and 5 it will be noted that the electric motor,which is-provided to advance the air through the radiator core, isdesignated by the reference character and is mounted on a 45 bar 61which is'attached directly to a housing function as the housingsubstantially the only difcan the heater shown in Figs. 4 and 5, and"the shown l to 3, inclusive, so is that the electric motor is carriedby the hall ing of the'radiator core instead of by the bracket whichsupports the housing.

Having thus described my invention, what I claim as new and desiretosecure by Letters Pat-- ent is:

1. The combination with a heater of the kind described having aradiatorcore adapted to be mounted upon the dashboard of an automobile andhaving conduits connected thereto for conducting a heating mediumthrough said core, of means for supporting said heater on saiddashboard, saidmeans comprising a separate member extending through saiddashboard and having a plurality of passages therethrough, means fordetachably securing the ends of said conduits to said separatemember incommunicating relationship with the said passages therein, and a bracketcarried bysaid member and supporting said radiator core.

2. The combination with a heater of the kind described having a radiatorcore adapted to be mounted upon the dashboard of an automobile andhaving conduits connected thereto for conducting a heating mediumthrough said core, of means for supporting said heater on saiddashboard, said means comprising a separate member extending throughsaid dashboard and having a plurality of passages therethrough, meansfor detachably securing the ends of said conduits to said separatemember in communicating relationship with the said passages therein, anda bracket carried by said member and supporting said radiator core, andmeans carried by said bracket for advancing air through said radiatorcore.

3. The combination with a heater of the type described having a radiatorcore disposed within a housing adapted to be mounted upon a dashboard ofan automobile, said heater having conduits connected thereto forconducting a heating 115 medium through said core, of means forsupporting said heater-on said dashboard, said means comprising a memberextending through said dashboard, and having a plurality of passagestherewith forming parts of said conduits, a 120 bracket carried by saidmember and supporting said housing, and means carried by said bracketfor advancing air through said radiator core.

